Nickel-63 has half-life of about 96 years. after 336 years, about how many milligrams of an 800 mg sample will remain?

A) 14 MG

B) 71 MG

C) 229 MG

D) 656 MG

Question

Rodrigo Richards

Mathematics

23 August, 13:11

Nickel-63 has half-life of about 96 years. after 336 years, about how many milligrams of an 800 mg sample will remain?

A) 14 MG

B) 71 MG

C) 229 MG

D) 656 MG

+2

Answers (1)

Know the Answer?

Virginia Ibarra · Answer 1

F=ar^t if the half-life is 96 years ...

.5=r^96

ln (.5) = 96lnr

ln (.5) / 96=lnr

r=e^ ((ln. 5) / 96)

f=800e^ (336 (ln. 5) / 96)

f=70.71

So about 71mg will remain after 336 years.

Nickel-63 has half-life of about 96 years. after 336 years, about how many milligrams of an 800 mg sample will remain?A) 14 MGB) 71 MGC) 229 MGD) 656 MG

Nickel-63 has half-life of about 96 years. after 336 years, about how many milligrams of an 800 mg sample will remain?

A) 14 MG

B) 71 MG

C) 229 MG

D) 656 MG